Refuse vehicle



April 8, 1952 H. J. VAN DOORNE REFUSE VEHICLE '3 Sheets-Sheet 1 FiledAug. 14, 1948 IJI) 7 April 8, 1952 VAN DOORNE 2,592,085

REFUSE VEHICLE 3 Sheets-Sheet 2 Filed Aug. 14, 1948 FIG.3

/ III-I;

. INVENTOR.

'HUBERTUS JOSEPHUS l/4N DOORNE 'Ajg'ril s; 1952 H. .1. VAN DOORNE2,592,085

REFUSE VEHICLE Filed Aug. 14, 1,948 3 Sheets-Sheet 3 INVENTOR. HUBERTUSJOSEPHUS IAN DOORNE Patented Apr. 8, 1952 OFFICE REFUSE VEHICLE HubertusJosephus van Doorne, Deurne, Netherlands Application August 14, 1948,Serial No. 44,312 In the Netherlands August 19, 1947 11 Claims.

This invention relates to a refuse vehicle of the type in which dustbins, ash, garbage or the like cans or are automatically emptied. Thistype is generally provided with a hydraulic device for lifting andtilting the dust bins.

The invention has for its object to provide a mechanical device foremptying the bins thus avoiding the drawbacks of hydraulic apparatus.

A further object of the invention is to provide a refuse vehiclecomprising means for compressing the refuse in a hopper, said means,however, not being of the screw type, which requires considerable powerand evidences considerable wear and tear at low efiiciency.

Another object of the invention is to provide apparatus for readily andautomatically emptying dust bins.

In the drawing:

Figure 1 is a side elevation seen from the right of the rear part of anembodiment of the vehicle according to the invention;

. Figure 2 is a side elevation seen from the left of the hopper shown inFigure 1 with a device for lifting and tilting dust bins the lifted andtilted bin position being shown in dotted lines;

Figure 3 is a rear view of a vehicle according to Figure 1 with twodevices for lifting and tilting dust bins;

Figure 4 is a side elevation seen from the left on a larger scale of adevice for engaging and disengaging the driving gear of a bin holder;

Figure 5 is a horizontal section of a detail in Figure 4 along the lineV-V on still arlarger scale;

Figure 6 is a side elevation of a part of the driving mechanism behindthe side wall shown in Figure 1;

Figure '7 is a section taken along line VIIVII in Figure 6. v a I Thevehicle comprises a receptacle I, the rear wall of which is formed by areceiving hopper 2. Although as shown in Figure 3 the hopper and thedevice for lifting and tilting dust bin are of the duplex type, in thefollowing descriptiongenerally a single hopper and a single devicecooperating therewith will be described.

The wall of the hopper 2 is shaped as part of a cylinderand fits belowto the bottom of'the receptacle I, whereas the upper edge 2a of thehopper is at a somewhat higher level than the horizontal plane throughthe cylinder axis.

A horizontal shaft 3 is rotatably mounted'in the hopper. A pressureplate 4 is secured to said, shaft. The hopper communicates with thereceptacle I by means of an aperture 5.

The engine for driving the vehicle (not shown) drives a shaft 6, whichby means of a universal joint I drives a bevel pinion 8. This pinion isin mesh with a bevel wheel 9 on a shaft I0 carrying a small tooth wheelII. This wheel is in mesh with a larger gear I2 (see also Figure 6),which drives a chain wheel I3. An endless chain I5 is mounted on chainwheels I3 and I4. The outer and the inner run of said chain are guidedon part circular tracks I6 and H.

An arm I8 is secured to the shaft 3 of the pressure plate 4. Said arm I8is provided with a slot I9 in which a sliding member 20 can bedisplaced. Said member 20 is connected to the chain I5 (see Figure 7).Consequently if the chain wheel I3 is driven in the direction of thearrow the member 20 follows the inner run along the track ll. Then armI8 is raised and via shaft 3 the pressure plate 4 is moved. When themember 20 passes the upper chain wheel I4, it is shifted in the slot ISin the direction of the shaft and subsequently it follows the outer runof the chain along the track I6, such that the arm I8 rotates the shaft3 in opposite direction and the pressure plate 4 is lowered.

A rocking member 2| can swing about shaft 3. This member is providedwith an aperture 22 (see Figure 3). By means of a shaft 23 a bin holder24 adapted to support a bin 25 is pivotally mounted with respect to therocking member 2|. An arm 26 (see Figure 2) is secured to the shaft 23and connected with a push rod 21 pivoted at 28 to the side wall of thehopper 2.

When the pressure plate 4 is raised, the rock-- ing member 2| is alsoraised. The pivot shaft 23 then moves along a circular path A of whichshaft 3 is the center. Due to the fact that the connection point 29between the arm 26 and the push rod 21 moves along another circular pathB having its center at 28, upon raising the rocking member 2| the binholder 24 is tilted to a position shown in dotted lines in Figure 2.The. aperture 22 in the.rocking member 2| is so wide that the lid 30opens by rotation about pivot 3I' and assumes a suspended position 30aas shown in Figure 2. Thus the bin is emptied in the hopper 2 throughthe aperture 32 situated over the edge 2a. When the pressure plate 4 isagain lowered, the rocking member 2| is also lowered and the bin holder24 with the bin 25 reassumes the position according to figure 1 due tothe fact that the rocking member 2| comes to rest on the rim 2a. Thepressure plate 4 continues its downward movement so that the refusedischarged in the hopper is driven through the opening 5 in thereceptacle I by means of the pressure plate 4 and when said receptaclehas been practically filled, the refuse is thereby also compressed.

In the duplex type accordin to Figure 3 a bevel wheel 9 is mountedbetween two shafts [0. At both sides of the bevel wheel 9 a frictioncoupling 33, 34 respectively has been provided. These couplings can bedisengaged by actuating levers so that the corresponding tooth wheels Il are driven.

A control handle 33 having a rearward extension 33a can be swung about apivot 40 which is carried by the forked end 55 of a shaft 56 journalledin a box-shaped projection 21) of the hopper casing 2. An arm 51 isfixed on the shaft 56 by means of a pin 58. The free end of said arm 51is connected with the corresponding coupling 33 (or 34) by means of arod 59. In order to engage the drive of the arm 18, the handle 39 ispulled down thus raising the free end of the arm 5'! and the coupling isengaged against the action of a spring (not shown) which tends tomaintain the coupling disengaged. Since such type of spring-loadedcouplings are generally known andv this type of coupling is not-afeature of the invention, it is not illustrated in the drawing. Afterpulling the handle 39 down, it is swung laterally a little so that theextension 39a engages a shoulder 42 of one of the legs of a fork-shapedguide 41 which is fixed to the side of the box 217. In this way thehandle is prevented from being raised by the (non-illustrated) spring ofthe coupling 33 (or 34) which urges the free end of the arm 51 in adownward sense. Thus the coupling rests engaged.

The driving arm i8 is provided with a cam 35 which is mounted on a pivot35a in such a way, that when the arm I8 is moving downwards, said cam ispushed back by coming into contact with a stop 36 fixed on a rod 31 (ofsquare or other non-round section) which is slidable, but not rotatablein the box 21). If, however, the arm l8 moves upwards, a bevel on thecam 35 pushes the stop 36 aside, thus sliding the rod 31 against theaction of a spring 38 which returns the rod 31 to its original positionas soon as the cam 35 has passed the stop 35.

If a bin 25 is placed in the bin holder 24, a stud 43 fixed to the binopposite to the hinge 3| of the lid 33, is engaged by a hook 24a of thebin holder. At the same time said stud 43 urges a rod 44 down againstthe action of a spring 45 so that a lever 46 is lowered. This lever isconnected by a link 60 with a sliding member 4i which is urged in upwarddirection by a spring GI and which is slidabl'e in the forked guide 41.The upper end of. the sliding member 4i is adapted to move not only upand down but also in lateral direction between the legs of the forkedguide 4?. The downward movement of the lever 46 thus pulls the slidingmember 4| down and in its lowermost position the upper end of saidsliding member is lower than the underside of the rearward extension 39aof the handle 33 as shown in Figure 4. If in this position the rod 3? isslid gainst the action of its spring 38 by the bevel face of the cam 35,the end of said rod 3'. will project, above the upper end of slidingmember 4!, between the legs of the forked guide 41, but not far enoughto come into contact with the rearward extension 39a of handle 39.Consequently said extension is not moved out of engagement with theshoulder 42 of guide 41 and the coupling 33 (or 34) in the drive of thechain t5 (and thusof the arm [3) rests engaged.

If a bin is removed from the bin holder 24, the

rod 44 is no longer pressed down and the sliding member 4| is allowed tobe raised by the action of its spring 6|, so that in the raised positionof the sliding member its upper part projects between the slidable rod31 and the rearward extension 39a of the handle 39. 'As has beenmentioned above, the arm (8 is reciprocated as long as the drive of thechain It; is engaged. If during the upward movement of the arm l8 thesliding rod 3! is shifted by the contact between the cam 35 on said arm[8 and the stop 36 on said rod 31, the end of this rod 37 abuts againstthe upper part of the sliding member 4!, so that this part is pressedlaterally against the extension 33a, forcing this extension out ofengagement with the shoulder 42 on guide 4?. This results in the handle39 being free to swing with its shaft 55 and the arm 5! fixed thereon,so that these parts no longer keep the coupling 33 (or 34) engaged andallow its sprin to act, thereby disengaging said coupling and stoppingthe drive of the corresponding chain [5.

In order to re-engage the drive after placing a new bin in the binholder 24, the handle 39 is pulled down again and swung laterally tolock it by the shoulder 42. If it is desired to disengage the drive, thehandle 33 is swung laterally so that its rearward extension 39a is freedfrom the shoulder 42 and is no longer locked thereon.

A cam disk 48 (see Figure 2) comprising two cams is secured to the shaftof the upper chain wheel I4. An arm 49 of a bell crank lever 50 liesagainst said cam disk. The other arm of said lever 50 is provided with asurface 5| which cooperates in the upper and tilted position of the binholder 24 with a roller 52 of an arm 53 secured to the shaft 23. Uponrotation of cam disk 48 the lever 50 is jerkingly moved so that also toarm 53 and thus to bin holder 24 a jerking movement is imparted. This ispossible, because the push rod 21 comprises two mutually shiftable partsurged apart by a spring 54. Hence during the jerking movement the spring54 is periodically slightly compressed. By this jerking movementemptying the bin 25 is facilitated.

The device works in a dust free manner because the bin 25 practicallycloses the opening 22 in the rocking member and the latter member in itsupper position i. e. the emptying position of the bin forms a seal forthe discharge opening 32.

During the lowering movement of the rocking member 2| the pressure plate4 is also lowered so that the room for refuse inthe hopper 2 is sealedfrom the atmosphere by the pressure plate 4. I

Having now described the nature of my invention and the objects thereof,what I claim is:

1. A refuse vehicle provided with a receptacle, a receiving hopperconnected to said receptacle, 2. device for lifting and tilting dustbins placed on said device and a device for compressing the refuse intosaid receptacle, said lifting device comprising a horizontal shaftmounted in said receiving hopper and adapted to be oscillated, apressure plate for compressing the refuse fixedly connected to saidhorizontal shaft, a driving means for operating said pressure plate, arocking member adapted to be swung upwardly about said shaft and to bepicked up by and lifting during part of the upward movement of saidpressure plate, a bin holder adapted to receive a dust bin and pivotablyconnected to said rocking memher by means of a pivot shaft, an arm onsaid pivot shaft, and a link connected with the free end of said arm andadapted to swing on a pivot mounted on the receiving hopper, the axes ofsaid horizontal pivot shaft and of said link pivot on said hopper beingfixed and non-coincident so that the tilting movement of the bin holderis greater than that of the rocking member.

2. A refuse vehicle according to claim 1, comprising an arm mounted onsaid horizontal shaft for reciprocating the pressure plate, a slidingmember, an endless chain secured to said sliding member, chain Wheelsfor said chain, one of said wheels being positively driven by saiddriving means, said sliding member upon passing a chain wheel beingshuttled from one run of the chain to the other.

3. A refuse vehicle according to claim 1, comprising means forautomatically disengaging the means for driving the bin holder when thelatter has returned in its lowermost position and the bin has beenremoved, a cam mounted to the drive arm of the pressure plate and amovable abutment arranged in the path of movement of said cam, saidabutment upon contact with said cam automatically disengaging a couplingin the driving means.

4. A refuse vehicle according to claim 1, comprising a device forimparting a repeated jerking movement to the bin holder in tiltedposition, a part of said holder in this position being supported againsta surface of a lever to which by means of a cam disc a jerking movementis imparted.

5. A refuse vehicle according to claim 1, said rocking member being sosized that in its uppermost position it substantially covers thedischarge opening of the hopper, the rocking member being provided withan aperture adapted to the size of the dust bins such that the apertureis practically closed by said bin.

6. In a refuse vehicle having a receptacle, a dust bin mechanismcomprising: a semi-cylindrical hopper at one end of said receptacle andcommunicating therewith through an aperture along one radial side ofsaid hopper, a shaft along the axis of said hopper, a radially extendingpressure plate on said shaft for sweeping through the space inside saidhopperand closing said aperture, a rocking member pivoted on said shaft,a bin holder pivoted to said rocking member, an arcuate endless chaindrive means to reciprocate said pressure plate and with it said rockingmember thereby raising and lowering said bin holder pivoted on to saidrocking member, and a link means pivoted to said hopper and connected tosaid bin holder to dump the bin in said holder into said hopper beneathsaid pressure plate towards the upper limit of movement of said pressureplate and said rocking member.

7. The mechanism of claim 6 including manual control means to start saiddrive means to lift and tilt said bin to dump it into said hopper.

8. The mechanism of claim 7 including cam means to disengage said drivemeans when the bin has been removed from said bin holder at the lowerlimit of movement of said rocking means.

9. A refuse vehicle provided with a receptacle, a device for lifting andtilting dust bins placed in said device for dumping the contents of saidbins into said receptacle, said device comprising: a bin holder. aspring loaded member attached to said holder, a notched rotating cam,and a cam follower imparting oscillating movements from said cam againstthe action of said spring of said member when said device is in itstilted position, whereby a repeated jerking movement is imparted to saidholder and bin to shake the contents from said bin into said receptacle.

10. The mechanism of claim 6 including means to jerk repeatedly the binholder and bin at said upper limit of movement of said rocking memberwhereby the contents of the bin are shaken therefrom into said hopper.

11. The mechanism of claim 10 wherein said jerking means comprises aserrated cam driven by said drive means.

HUBERTUS JOSEPHUS v. DOORNE.

REFERENCES GITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,084,656 Rottee June 22, 19372,124,624 Leach et al July 26, 1938 2,252,608 Ballert Aug. 12, 19412,414,774 Spinks Jan. 21, 1947 2,417,696 Linde Mar. 18, 1947 2,456,434Manthie Dec. 14, 1948 FOREIGN PATENTS Number Country Date 218,485 GreatBritain July 10, 1924 279,715 Great Britain Nov. 3, 1927 742,812 FranceJan. 4, 1933 45,030 Netherlands Feb. 15. 1939

